[INFO] cloning repository https://github.com/StellarGlyph/chatroom [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/StellarGlyph/chatroom" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStellarGlyph%2Fchatroom", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStellarGlyph%2Fchatroom'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e5bef1923e6431160c44de57c682f207b7c77638 [INFO] checking StellarGlyph/chatroom/e5bef1923e6431160c44de57c682f207b7c77638 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FStellarGlyph%2Fchatroom" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/StellarGlyph/chatroom on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/StellarGlyph/chatroom [INFO] finished tweaking git repo https://github.com/StellarGlyph/chatroom [INFO] tweaked toml for git repo https://github.com/StellarGlyph/chatroom written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/StellarGlyph/chatroom already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ace2f33e4f63e9bb5234f43b20b2d930a4734df546aef759606e2f31ddce2381 [INFO] running `Command { std: "docker" "start" "-a" "ace2f33e4f63e9bb5234f43b20b2d930a4734df546aef759606e2f31ddce2381", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ace2f33e4f63e9bb5234f43b20b2d930a4734df546aef759606e2f31ddce2381", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ace2f33e4f63e9bb5234f43b20b2d930a4734df546aef759606e2f31ddce2381", kill_on_drop: false }` [INFO] [stdout] ace2f33e4f63e9bb5234f43b20b2d930a4734df546aef759606e2f31ddce2381 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dtail_expr_drop_order" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 574f6a5f5b197ca81cba602d01ce897fc10dc605402354277b6b152606a58d65 [INFO] running `Command { std: "docker" "start" "-a" "574f6a5f5b197ca81cba602d01ce897fc10dc605402354277b6b152606a58d65", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.82 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling libc v0.2.154 [INFO] [stderr] Compiling autocfg v1.3.0 [INFO] [stderr] Checking futures-core v0.3.30 [INFO] [stderr] Checking futures-sink v0.3.30 [INFO] [stderr] Checking pin-project-lite v0.2.14 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking futures-task v0.3.30 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking futures-io v0.3.30 [INFO] [stderr] Checking bytes v1.6.0 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Checking fastrand v2.1.0 [INFO] [stderr] Checking futures-channel v0.3.30 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.61 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking socket2 v0.5.7 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Compiling futures-macro v0.3.30 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling snafu-derive v0.8.2 [INFO] [stderr] Checking tokio v1.37.0 [INFO] [stderr] Checking futures-util v0.3.30 [INFO] [stderr] Checking snafu v0.8.2 [INFO] [stderr] Checking futures-executor v0.3.30 [INFO] [stderr] Checking futures v0.3.30 [INFO] [stderr] Checking tokio-util v0.7.11 [INFO] [stderr] Checking chat_server v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `tokio_util::bytes::buf::Writer` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_util::bytes::buf::Writer; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::common::utils::random_name` [INFO] [stdout] --> src/common/utils.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | use crate::common::utils::random_name; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tokio_util::bytes::buf::Writer` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use tokio_util::bytes::buf::Writer; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/main.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | let (tx, _) = broadcast::channel::(32); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `username` [INFO] [stdout] --> src/group.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | pub async fn join(&self, username: String) -> Sender { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_username` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `tx` [INFO] [stdout] --> src/main.rs:44:10 [INFO] [stdout] | [INFO] [stdout] 44 | let (tx, _) = broadcast::channel::(32); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_tx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `username` [INFO] [stdout] --> src/group.rs:25:30 [INFO] [stdout] | [INFO] [stdout] 25 | pub async fn join(&self, username: String) -> Sender { [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_username` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `users` are never read [INFO] [stdout] --> src/group.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Group { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | users: Arc>>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `join` is never used [INFO] [stdout] --> src/group.rs:25:18 [INFO] [stdout] | [INFO] [stdout] 14 | impl Group { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 25 | pub async fn join(&self, username: String) -> Sender { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Server` is never constructed [INFO] [stdout] --> src/server.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Server{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:32:59 [INFO] [stdout] | [INFO] [stdout] 31 | let state = RuntimeState::new_share(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 32 | start_server("127.0.0.1:9999".to_string(), state).await [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `users` are never read [INFO] [stdout] --> src/group.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Group { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 9 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 10 | users: Arc>>, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `join` is never used [INFO] [stdout] --> src/group.rs:25:18 [INFO] [stdout] | [INFO] [stdout] 14 | impl Group { [INFO] [stdout] | ---------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 25 | pub async fn join(&self, username: String) -> Sender { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Server` is never constructed [INFO] [stdout] --> src/server.rs:1:8 [INFO] [stdout] | [INFO] [stdout] 1 | struct Server{ [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `work` is never used [INFO] [stdout] --> src/main.rs:150:14 [INFO] [stdout] | [INFO] [stdout] 150 | async fn work(mtx: &Mutex) { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:32:59 [INFO] [stdout] | [INFO] [stdout] 31 | let state = RuntimeState::new_share(); [INFO] [stdout] | ----- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] 32 | start_server("127.0.0.1:9999".to_string(), state).await [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `chat_server` (bin "chat_server") due to 2 previous errors; 8 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `chat_server` (bin "chat_server" test) due to 2 previous errors; 6 warnings emitted [INFO] running `Command { std: "docker" "inspect" "574f6a5f5b197ca81cba602d01ce897fc10dc605402354277b6b152606a58d65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "574f6a5f5b197ca81cba602d01ce897fc10dc605402354277b6b152606a58d65", kill_on_drop: false }` [INFO] [stdout] 574f6a5f5b197ca81cba602d01ce897fc10dc605402354277b6b152606a58d65